Mothod of manufacturing Antibacterial packaging film using modified zeolite and Antibacterial packaging film manufactured by the method

• Main Author: LEE, WON HYOUNG
• Format: Patent
• Language: English; Korean
• Published: 24.01.2022
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; GENERAL PROCESSES OF COMPOUNDING; MAKING GRANULES OR PREFORMS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; PREPARATION OR PRETREATMENT OF THE MATERIAL TO BESHAPED; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIALCONTAINING PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; WORKING-UP

A method of manufacturing an antibacterial film for food packaging comprises: a step of preparing a pre-treated modified zeolite powder by mixing natural zeolite with an amine solution; a step of preparing a modified zeolite mixture by mixing a nanocellulose solution with the modified zeolite powder; a step of preparing a composition for a master batch by mixing and stirring the modified zeolite mixture, loess soil, soybean extract, tetrabutyl ammonium, and zinc oxide into a plastic resin raw material; a step of extruding the composition for a master batch with an extruder; a step of preparing a master batch by cooling and cutting the extruded extrudate; and a step of preparing a film for packaging by supplying the master batch to the extruder. The antibacterial film for food packaging using the modified zeolite according to the present invention has an excellent effect of inhibiting the growth of microorganisms in food when the packaged food is stored, can maintain the freshness of food for a long time by slowing the progress of spoilage, has an excellent effect of inhibiting bacterial spoilage, and has an effect of reducing the objection of consumers by implementing the antibacterial effect by using a natural material rather than an artificial additive. 본 발명의 식품포장용 항균 필름의 제조방법은 천연 제올라이트를 아민 용액에 혼합하여 전처리한 개질 제올라이트 분말을 제조하는 단계; 상기 개질 제올라이트 분말에 나노 셀룰로오스 용액을 혼합하여 개질 제올라이트 혼합물을 제조하는 단계; 상기 개질 제올라이트 혼합물, 황토, 대두추출물, 테트라 부틸 암모늄 및 산화아연을 플라스틱 수지 원료에 혼합, 교반하여 마스터 배치용 조성물을 제조하는 단계; 상기 마스터 배치용 조성물을 압출성형기로 압출하는 단계; 상기 압출된 압출물을 냉각한 후 절단하여 마스터배치를 제조하는 단계; 상기 마스터배치를 압출성형기에 공급하여 포장용 필름을 제조하는 단계;를 포함하는 것을 특징으로 한다.본 발명에 의한 개질 제올라이트를 이용한 식품포장용 항균필름은 포장된 식품을 보관할 경우 식품의 미생물 증식 억제효과가 우수하고 부패의 진행정도를 매우 느리게 진행시킴으로써 식품의 신선도를 오랫동안 유지할 수 있고, 세균성 부패를 억제할 수 있는 우수한 효과를 가지며, 인공첨가물이 아닌 천연소재를 사용하여 항균 효과를 구현하여 소비자의 거부감을 줄일 수 있는 효과가 있다.